#include <stdio.h>
#include <string.h>
#define NLEN 30

struct namect {
    char fname[NLEN];
    char lanme[NLEN];
    int letters;
};
void getinfo(struct namect *);
void makeinfo(struct namect *);
void showinfo(const struct  namect *);
char * s_gets(char * st,int n);


int main() {
    struct namect person;

    getinfo(&person);
    makeinfo(&person);
    showinfo(&person);

    return 0;
}

void getinfo(struct namect * pst){
    printf("Please enter your first name.\n");
    s_gets(pst->fname,NLEN);
    printf("Please enter your last name.\n");
    s_gets(pst->lanme,NLEN);
}

void makeinfo(struct namect * pst){
    pst->letters  = strlen(pst->fname) + strlen(pst->lanme);
}

void showinfo(const struct namect * pst){
    printf("%s  %s, your name contains %d letters.\n",pst->fname,pst->lanme,pst->letters);
}

char * s_gets(char * st,int n){
    char * ret_val;
    char * find;

    ret_val = fgets(st,n,stdin);
    if(ret_val){
        find = strchr(st,'\n'); // 查找换行符
        if(find)
            *find = '\0';
        else
            while (getchar() != '\n')
                continue;
    }
    return ret_val;
}